an aircraft carrier.
a type of crew cut in which the hair is cropped in a flat plane across the top.
Origin of flattop
Related formsflat-topped, adjective
First recorded in 1940–45; flat1
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for flat-top
Historical Examples of flat-top
They worked desperately, and from time to time I caught sight of Flat-top.
Flat-top was the name I gave him because of his straight back.
“Flat-top,” my beaver neighbor, was a pioneer and a colony-founder.
You see that flat-top mountain—the first mountain in the northwest?
The room contained a safe, a flat-top desk and a few chairs.
British Dictionary definitions for flat-top
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for flat-top
"aircraft carrier," 1943, U.S. Navy, from flat (adj.) + top (n.). As a style of haircut, from 1956.
Online Etymology Dictionary, © 2010 Douglas Harper